To run the blinker you must have "bootable" SD card with "diskboot.bin"

#define LED_AF 0xc02200C0 // AutoFocus
#define LED_BLUE 0xc02200C4 // next to the printer
#define LED_RED 0xc02200C8 // next to the play button, rather orange
#define LED_GRN 0xc02200CF // in the same position as above, but in green
#define LED_PWR 0xc02200D0 // green power on top of the camera